Hello all. Having been reading posts for days and am into day two of bacquacil to chlorine conversion using the bleach method. So far have used 25 bottles of 96 oz bleach, 6%, brand X. Pool is inground, 21,000 gallons, 16 X 32 with a 3 foot and 8 foot end. I have gone from deep dark green to pea soup to light murky green and I can finally see the lower end bottom! The algae just sweeps away now with broom. BAC algicide did nothing, as I'm sure you all know. Sorry I have not gotten more interesting colors. Sanitizer was at zero when we started. I have not yet gotten a kit that measures up to 15ppm (I thought 1.5 meant 15, but I'm new at this). I have one now that measures up to 10 but I am still at 3 but we are doing well here. Anyway, is it possible to convert without getting to 15ppms? Water is getting clearer and clearer. Sand was changed day before I started to convert. Brand new liner, filter, skimmer, sand. My other question is - what does 'CC' stand for? I can't seem to find that anywhere. Thanks SO much.